Kvaser Leaf V3 CAN FD Interface User Manual

1. Introduction

The Kvaser Leaf V3 is a high-performance CAN FD interface designed for connecting a computer to a CAN bus network. It enables monitoring and transmission of CAN and CAN FD data with high accuracy. Featuring a standard USB 2.0 connector and a 9-pin D-SUB connector, this device offers a robust yet compact solution for various applications, including those with space constraints. It operates without external power and includes standard galvanic isolation for enhanced protection.

Key Features:

• Processes up to 20,000 messages per second, each time-stamped with a 50-microsecond resolution.
• Supports CAN FD communication with data rates up to 8 Mbit/s.
• Offers quick and easy plug-and-play installation.
• Includes a silent mode for analysis tools, allowing passive bus monitoring without interference.
• Features standard galvanic isolation to protect against power surges and electrical shocks.

2. Safety Information

Please read and understand all safety instructions before using the Kvaser Leaf V3. Failure to follow these instructions may result in damage to the device, connected equipment, or personal injury.

• Electrical Safety: The device features galvanic isolation. However, always ensure proper grounding of connected systems. Do not expose the device to moisture or extreme temperatures.
• Connection: Ensure all connections are secure and correctly oriented before powering on any connected systems. Incorrect wiring can cause damage.
• Environment: Use the device in a clean, dry environment. Avoid areas with excessive dust, vibration, or electromagnetic interference.
• Maintenance: Refer to the maintenance section for cleaning and care. Do not attempt to open or repair the device yourself. Contact Kvaser support for service.

3. Package Contents

Verify that all items are present in your package:

• Kvaser Leaf V3 CAN FD Interface unit
• USB Cable (integrated)
• Documentation (this manual, available online)

4. Setup

Follow these steps to set up your Kvaser Leaf V3 CAN FD Interface:

1. Connect to Computer: Plug the USB Type-A connector of the Kvaser Leaf V3 into an available USB 2.0 port on your computer. The device is plug-and-play, and necessary drivers will typically install automatically on supported operating systems (Windows 7 or later, Linux).
2. Connect to CAN Bus: Connect the D-SUB 9-pin connector of the Kvaser Leaf V3 to your CAN bus network. Ensure the connection is secure.
3. Software Installation: Install the Kvaser CANLIB SDK or other compatible software (e.g., J2534, RP1210A) on your computer. The SDK includes full documentation and program samples in various languages (C, C++, C#, Delphi, Visual Basic).
4. Power Indicator: Once connected to the USB port, the PWR LED on the device should illuminate, indicating it is receiving power.

Figure 1: Kvaser Leaf V3 CAN FD Interface showing its compact design and connectors. The device is connected via its integrated USB cable and features a D-SUB 9-pin connector for the CAN bus.

5. Operating the Device

The Kvaser Leaf V3 is designed for straightforward operation in monitoring and transmitting CAN/CAN FD data.

1. Software Interface: Use the Kvaser CANLIB SDK or your chosen compatible software to interact with the device. The software provides the interface for configuring CAN parameters, sending messages, and receiving data.
2. Data Monitoring: Once connected and configured, the device will begin monitoring the CAN bus. Received messages are time-stamped with 50-microsecond accuracy.
3. Data Transmission: Utilize your software to transmit CAN or CAN FD messages onto the bus.
4. Silent Mode: For analysis tools that require passive listening without interfering with bus communication, enable silent mode through your software. This allows the device to listen to the bus without sending acknowledgment bits.
5. LED Indicators: The device features two LEDs:
   • PWR (Power): Indicates that the device is powered via the USB connection.
   • CAN: Indicates CAN bus activity (transmitting or receiving data).

Figure 2: Close-up view of the Kvaser Leaf V3 showing the PWR (green) and CAN (orange) indicator LEDs, signifying power and active CAN bus communication respectively.

6. Maintenance

To ensure the longevity and optimal performance of your Kvaser Leaf V3, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the exterior of the device. Do not use liquid cleaners or solvents, as they may damage the housing or internal components.
• Storage: When not in use, store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
• Cable Care: Avoid sharp bends or excessive pulling on the integrated USB cable. Inspect the cable and connectors periodically for any signs of wear or damage.
• Firmware Updates: Regularly check the Kvaser website for any available firmware updates for your device. Keeping the firmware updated ensures compatibility and access to the latest features and improvements.

7. Troubleshooting

If you encounter issues with your Kvaser Leaf V3, refer to the following common troubleshooting steps:

• Device Not Recognized:
  • Ensure the USB cable is securely connected to both the device and the computer.
  • Try connecting to a different USB port on your computer.
  • Verify that the necessary drivers are installed. Check Device Manager on Windows or use `lsusb` on Linux to see if the device is detected.
  • Restart your computer.
• No CAN Activity:
  • Check the D-SUB 9-pin connection to the CAN bus for proper seating.
  • Confirm that the CAN bus itself is operational and correctly terminated.
  • Verify your software configuration for the correct CAN bitrate and other parameters.
  • Ensure the CAN bus has active communication.
• Software Errors:
  • Ensure you are using the latest version of the Kvaser CANLIB SDK or compatible software.
  • Consult the documentation for your specific software for error code explanations.
• Intermittent Connection:
  • Check for loose connections on both the USB and CAN bus sides.
  • Avoid using unpowered USB hubs; connect directly to the computer if possible.
  • Ensure the operating environment is stable and free from excessive electrical noise.

If these steps do not resolve the issue, please contact Kvaser Technical Support.

8. Specifications

9. Warranty and Support

The Kvaser Leaf V3 CAN FD Interface is covered by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the official Kvaser website or contact your point of purchase.

For technical support, driver downloads, software updates, and additional documentation, please visit the official Kvaser support portal:

• Kvaser Website: www.kvaser.com
• Support Contact: Refer to the Kvaser website for regional support contact information.

When contacting support, please have your device's serial number and a detailed description of the issue ready.